JUMPERS: PICK THE RIGHT PATCH CORD FOR YOUR FIBER OPTIC NETWORK

by www.fiber-mart.com

A fiber jumper—more commonly called a fiber patch cord—is a length of fiber cable that connects end devices or network hardware to your structured cabling system. The cable is terminated with LC, SC, MTRJ or ST connectors at each end.

 

Jumpers come in simplex or duplex and should be chosen based on your network needs. Figuring that part out is as easy as knowing the difference between its and it's when you're writing blog posts.

 

SIMPLEX VS DUPLEX JUMPERS

Simplex cables, a single strand of glass encased in plastic, are generally used when a data transmission needs to travel in only one direction. They're a great choice for connections within buildings or across large areas like cable TV networks.

 

Duplex cables, two strands of fiber in a single cable, are like a two-lane highway. The signal needs to go both ways, called bi-directional communication, between your active gear.

 

One cable is transmitting the signal, while the other is receiving it. Duplex cables are typically used in larger work stations, switches, servers and on major networking hardware.

 

Duplex cables also come in zipcord or uniboot construction. In zipcord, two fiber strands are fused together but are easily torn apart when it's time to mine out either the transmission or receiver strand.

 

For uniboot, the two fibers merge into a single connector at either end, making replacement and maintenance a bit more difficult and costly than zipcord cables.

 

CHOOSING YOUR PATCH CORD

Single-mode simplex fiber carries only one ray of light at a time. It's extremely reliable and holds a high-carrying capacity for long-distance transmissions.

 

Since it requires less material, it's usually more cost-effective than duplex cable. It's the most commonly used cable in modern communications, because of its high capacity, allowing for higher transmission speeds and more bandwidth.

 

The risk you run is the amount of fiber you're going to have on your fiber distribution frames.

 

You know … spaghetti syndrome.

 

Duplex jumpers help keep your data center cleaner and tidier. They allow you to require less cable, and maintenance becomes a lot easier.

 

The choice between simplex and duplex jumpers really depends on your network—who it's serving and how complex it needs to be.

 

HOW TO CHOOSE FIBER OPTIC ADAPTER

by www.fiber-mart.com

s we know, fiber optic connector is an important fiber optic component used to link two fiber optic lines together. Beside connector, there is also another item, which is fiber optic adapter with panels to connecting multi fiber optic line. Specifically, the fiber optic adapter is a small device that used to terminate or link the fiber optic cables or fiber optic connectors between two fiber optic lines. In order to realize the fluent fiber optic connection, the fiber optic adapter panel shapes or types should be in accordance with the fiber optic connectors or cables. Common shapes of the adapters are square, rectangular, or round that with FC, LC, ST, SC, MTRJ types. There are also single mode and multimode fiber optic adapters or single mode and multimode fiber optic connections. So when purchasing fiber optic adapters for fiber connections, it is essential to choose the right fiber optic adapter according to the fiber optic connector or fiber optic cables.

 

Standard or flange fiber optic adapter is a typical type used to connect the same types of optical connector, there are SC, ST, LC and MTRJ type available for choosing. These adapters are comprised of two or more female connections that fiber optic cables can be plugged into. flange fiber optic adapters are typically with ceramic sleeves, fitting for both single mode and multimode fiber optic connections.

 

Hybrid fiber optic adapters are another type used to link two different kinds of fiber connectors or cable assemblies. For example, LC to SC hybrid adapter, it can link LC connector at one side and SC connector at the other side. Hybrid fiber adapters can be also used for single mode and multimode fiber optic connections with PC or APC sleeves, in simplex and duplex style. Hybrid fiber adapters use high precision ceramic sleeves because it can provide reliable ferrule mating and ensure low insertion loss and return loss during the connecting. This type of optical fiber adapters is with compact sized and widely used for network environments integrating different configurations and telecommunications networks.

 

Bare fiber adapter is structured with optic fibers on one side and the adapter on the other side. It is used to link the bare optical fiber cable to fiber optic equipments. The adapter side is a connector that can plug into the equipment and enable a quick and easy termination for the optic fiber. Because this feature of the bare fiber adapters, they are widely used for emergency situation for fast and temporary fiber optic or urgent connection, testing bare fiber, fiber on the reel, fiber before and after installation and so on. SC, FC, LC, ST bare fiber adapters is now available in the market.

 

A single optical fiber adapter usually could hold a dozen of cables, if you splice multiple adapters together, it can even make hundreds or thousands of connection. Knowing what kind of connections, multimode or single mode, simplex or duplex, as well as the connector types can help you choose the corresponding right type of optical fiber adapter for application.

WHAT IS A FIBER LOOPBACK CABLE?

by www.fiber-mart.com

Fiber loopback is a media of return patch for a fiber optic signal that widely used for fiber optic testing, fiber network repair and fiber optic equipment diagnosis. Loopback test is a hardware or software method to test physical link problems of the fiber optic networks. It is realized by feeding a received signal or data back to the sender. Fiber optic loopback cables types is classified based on the fiber connector types, optic fiber modes.

 

Traditional fiber optic loopback is like a fiber optic patch cable with two fiber connectors at each end, forming a loop. Nowadays there are also another improved fiber loopbacks which called molded fiber optic loopbacks or fiber optic loopback modules. It is more compact sized and stronger. The molded loopback use an outer enclosure to protect it and from the outside you do not see the optical cables, they are more compacted size and stronger then the fiber loopback cables.

Just like the fiber patch cable, the fiber loopbacks is made up of different kinds of outer jackets, cable diameters, length or terminations that various according to customers’ special requirements.

 

Fiber Optic Loopback Applications

Fiber amplifier

Optical fiber sensor

Tester, Cable TV systems

Communications connections

 

Fiber Optic Loopback Types

Based on the optical connector types on the loopback, there are SC, LC, MTRJ, ST, FDDI etc. The most commonly used fiber optic loopbacks are SC and LC type.

According to the optic fiber mode type of the loopback cable, there are single mode 9/125 fiber optic loopbacks, 10G multimode loopback, multimode 50/125 fiber optic loopbacks and 62.5/125 fiber optic loopbacks. 10G loopback module is used in 10G multimode 50/125 Fiber Testing application. Typically single mode SC type and LC type fiber optic loopbacks are blue color, typical multimode LC and SC type fiber loop backs are beige color, this also goes with the practice of fiber optic patch cables.

 

Specifications

Connector type: SC, LC, MTRJ available

Optical fiber mode: multimode 50/125 um, multimode 62.5/125 um, single mode 9/125 um

Working wavelength: Available wavelengths are 850nm, 1310nm and 1550nm. 850nm and 1310nm are for multimode applications and 1550nm is for single mode applications.

Insertion Loss (dB) ≤ 0.2

Exchangeability ≤ 0.2 (500 cycle passed)

Temp. Range ≤ 0.2 dB ( - 40 to +80 degree centigrade)

 

Wide ranges of fiber loopback cables are available at ingellen.com, they are designed with compact size, totally complied with the industrial standard which is ideal choice for your fiber optic testing. Besides we also provide custom fiber loopback according to your required jacket types and cable diameters, length or terminations. All our products are fully tested to comply with compliant with fast ethernet, fiber channel, ATM and Gigabit Ethernet Welcome to purchase or customize fiber optic loopback cables or the connector configurations and special polished for them via ingellen.com or contact sales@ingellen.com right now!

NEW GENERATION 100G WDM NETWORK TECHNOLOGY

by www.fiber-mart.com

Huawei announced that, KPN International introduced the based on second generation of soft decision 100G WDM technology from Huawei. 100G signals transmitted from the existing network of Amsterdam to Paris, via Germany, transmission distance up to 1,400 km. Because the system has a great margin, and later at the end of the site added 300 km fiber, the signal is still being successfully transmitted. The successful launch marks the 100G technology entered into a new commercial era.

 

Soft-decision is the most leading optical signal powerful error correction technology, is the key of 100G technology to large-scale commercial. And the second generation of soft decision adopts oDSP module, developed for Huawei's 400G technology, in essence is with 400G technology to enhance the performance of 100G, realizes the further optimization of the FEC algorithm, achieve a lower damage in transmission performance, lower single-bit power consumption. Benefit from the breakthroughs in key technologies, compare to the first generation of soft-decision system, the second generation soft decision improves the transmission distance from 3000 km to 4000 km, the transmission performance is improved by 30%.

 

KPN International introduced the second generation of soft decision technology sucessfully, fully demonstrated the new generation 100G technology has matured, and also verified the Huawei 400G core modules maturity. KPN International began using Huawei next WDM system in pan-European wavelength division trunk in 2008, the network is one of Europe's largest and most leading WDM networks, KPN International was the first to deploy Huawei coherent 100G WDM technology in 2011.

 

"Customer success is the constant pursuit of Huawei," Huawei Transport Network Product Line CEO Wang Weibin said, "Huawei has long-term cooperation with leading operators such as KPN , to meet the needs of customers, and work with customers to open a window to the future."

 

Huawei is the best partner for next-generation WDM network customers, so far, has builded over 90 100G commercial network. According to industry authority consulting company Ovum statistics, as the first quarter of 2013, Huawei continues to rank first in the global optical network market, ranks first in the global WDM/OTN market, ranks first in the global 100G and 40G market.